Wedge clams
Donax trunculusWedge clams
- Scientific name: Donax trunculus
- Sales name: Telline
The mollusc Donax trunculus, commonly known as wedge clam although not belonging to the genus of the same name, is a bivalve mollusc of the Donacidae family. It is a bivalve mollusc with a triangular shape, with wide and short rounded valves; it is white with ocher-brown-reddish shades. In Italy the collection of this mollusc is commonly practiced. Professional harvesting is carried out using a tool called a “rake boat”, similar to that used for clam fishing, which is towed by boats. Manual harvesting takes place through a tool mainly composed of a sieve which collects the wedge clams and separates them from the sand. This instrument is operated by means of a band around the waist which serves to move it horizontally and by a long handle which protrudes from the water. The handle allows the sieve to catch the sand to be sifted and prevent it from remaining on top.
| Origin | France, Greece, Italy, Spain |
|---|---|
| Fishing season | fishing is done all year round |
| Fishing gear | with rake or sieve |
| Packaging | 1, 2, 3 kg net |
|---|---|
| Commercial size | 2 cm |
| Storage | temperature between +2° and +6° C for live and viable product. |
Chemical parameters provided for by Reg. (EC) 1881/06
| Lead | 1.5 mg/kg fresh weight |
|---|---|
| Cadmium | 1 mg/kg fresh weight |
| Mercury | 0.5 mg/kg fresh weight |
Biotoxicological parameters provided for by Reg. (EC) 853/04
| PSP (Paralytic Shellfish Poison) | 800 µg/kg |
|---|---|
| ASP (Amnesic Shellfish Poison) | 20 mg/kg of Domoic acid |
| Ac. Okadaico, dinophysis toxins and pectenotoxins | 160 µg of Okadaic acid equivalents/kg |
| Yessotoxins | 3.75 mg of Yessotoxins equivalents/kg |
| Azaspiracids | 160 µg of Azaspiracid equivalents/kg |
Microbiological parameters provided for by Reg. (EC) 2073/05:
| E. coli | n=5 c=1 m=230 MPN/100g M=700 MPN/100g |
|---|---|
| Salmonella | absent in 25 g |
Bouquet: characteristic marine
Appearance: regular without epibondi
Colour: white with ochre/brown-reddish shades
Taste: delicate marine taste
Energy value: 72.7 kcal
Proteins: 10.6 g
Carbohydrates: 2.4 g
Fats: 2.3 g
*Biological values
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